<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <p>async函数返回的结果，是一个promise对象</p>
    <script>

        async function asyncTest() {
            let a = 1;
            return a;
        }

        asyncTest().then(res => {
            console.log(res);
        })

    </script>
</body>
</html>